Among samples collected at recruitment, hemoglobin concentrations (Field ID 30020, mg/dL) were measured in EDTA‐vacutainers using the Sysmex
XN‐1000 hematology analyzer at the laboratory of the UK Biocenter (
https://biobank.ctsu.ox.ac.uk/crystal/crystal/docs/haematology.pdf).
35 (
link),
36 (
link) The primary outcomes included incident cases of CAD, HF, IS, and T2D, which were identified through linkage to Hospital Episodes Statistics and mortality data, with diagnostic criteria defined by the
International Classification of Diseases, Ninth Revision (
ICD‐9) and
Tenth Revision (
ICD‐10) codes (Table
S2). Data from UKB are available to bona fide researchers on application to
https://www.ukbiobank.ac.uk. Data from other genetic consortia are also available on application to the relevant consortia.